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I Sverige lär sig de flesta barn cykla innan de börjar skolan och det tas mer eller mindre för givet att alla vuxna kan cykla. Men långt ifrån alla kan. År 2016 startade Cykelfrämjandet projektet ”Frihet på cykel” då intresset av att lära sig cykla och behovet av cykelkurser ökade allt mer. I artikeln, som bygger på ett fältarbete vid cykelkurser för vuxna i Malmö och Stockholm och intervjuer med
Forest ecosystems, covering over a third of land on the Earth, play a significant role in the global hydrological cycle, and influence soil erosion and climate change. However, the distribution, movements, quality of water, and hydrological processes in forested ecosystems are not well understood yet. This thesis aims to improve our understanding of the interaction between forest ecosystems and waForest ecosystems, covering over a third of land on the Earth, play a significant role in the global hydrological cycle, and influence soil erosion and climate change. However, the distribution, movements, quality of water, and hydrological processes in forested ecosystems are not well understood yet. This thesis aims to improve our understanding of the interaction between forest ecosystems and wa
Ett hållbart och acceptabelt pensionssystem måste utformas utifrån personliga förutsättningar och förhållanden i arbetslivet, så att fler klarar att arbeta i högre ålder. Att enbart genom ekonomiska åtgärder höja pensionsåldern är inte långsiktigt hållbart, skriver 54 forskare.DEBATT | PENSIONForskning visar att cirka var fjärde har en diagnos eller skada orsakad av sitt arbete. Detta gör arbetsor
Var fjärde person blir i dag sjuk till följd av sitt arbete. Att höja pensionsåldern för alla yrkesgrupper, utan konkreta åtgärder för att minska ohälsan, är därför problematiskt och mycket oroande. Det är, enligt forskarna, inte långsiktigt samhällsekonomiskt lönsamt att utan andra åtgärder höja pensionsåldern för alla. Vi – 54 forskare – är mycket oroade över konsekvenserna av att, som föreslagi
Raney nickel-2H2O exchange reaction on an epimeric mixture of methyl α/β-D-ribofuranoside [α/β = ∼3:10]1 produced methyl 1#,2,3,4#,5,5′-2H6-α/β-ribofuranoside 2 [97 atom % 2H at C2, C3, C5/5′; ∼85 atom % 2H at C4 (C4#); ∼20 atom % 2H at C1(C1#)] which was obtained in 60 – 80 % yield along with epimeric xylo and arabino by-products. Toluoylation of the crude 2 in dry pyridine and a careful separati
Pure 1′#,2′,3′,4′#,5′,5′'-2H6-ribonucleoside derivatives 10–14, 1′#,2′,″,3′,4′#,5′,5″-2H7-2′-deoxynucleoside blocks 15–18 and their natural-abundance counterparts were used to asemble partially deuterated ribonucleotide-dimers (∗ indicates deuteration at 1′#,2′,3′,4′#,5′,5″(2H6)): ApU∗21, GpC∗22 partially deuterated 2′-deoxyribonucleotide-dimers d(TpA∗) 23, d(ApT∗) 25, d(GpC∗26 (∗ indicates deuter
The concept of the 1H-NMR window has been developed and examined through a comparative study of NOESY spectra of a self-complementary Dickerson's dodecamer (I) [S'd^C^CGWA^T^T^Ci4GisCi6G) 23'] ) a self-complementary 20-mer (II) [(5d(1 C2G3C4G5C6G7C8G9A1 ˚A11T12T13C14G15C16G17C- 18G19C20G)23'] in which the core part consists of the same Dickerson's dodecamer sequence with the flanking CGCG residues
Selective incorporation of the stereospeciflcally deuterlated sugar moieties (\lt;97 atom \% 2H enhancements at H2′, H2″, H3′ and H5′/5′ sites, ∑85 atom \% 2H enhancement at H4′ and ∑20 atom \% 2H enhancement at H1′) in DNA and RNA by the ‘NMR-window’ approach has been shown to solve the problem of the resonance overlap [refs. 1, 2 \amp; 3]. Such specific deuterium labelling gives much improved re
The nucleobase-prolecled parlially-deuteraled 5′-O-DMTr-2′#,2″#,3′,4′#, 5′,5″-2H5-2′-deoxyribonucleoside 3′-phosphoramidite derivatives 17a,b – 20a,b. containing C2′ isolopomeric mixture of deuterons and protons 1~15 atom % 2H at C2′(R), ~85 atom % 2H at C2′(S); 65 atom % 2H at C4′ (#), >97 atom % 2H at C3′ and C5′, i.e. Blocks B and C in Fig. 11, have been site specifically incorporated into a se
The first synthesis of a non-uniformly deuterium labelled 21mer RNA is reported using our ‘NMR-window’ concept, showing its unique application in the unambiguous NMR assignment of the non-exchangeable aromatic and sugar protons.
We study the possibility of using convolutional neural networks for wavefront sensing from a guide star image in astronomical telescopes. We generated a large number of artificial atmospheric wavefront screens and determined associated best-fit Zernike polynomials. We also generated in-focus and out-of-focus point-spread functions. We trained the well-known “Inception” network using the artificial
In this paper we discuss a number of factors that bear on the question if a Chinese given name is more likely to refer to a female or a male. In some cases this can be determined (with some degree of confidence) – in others it cannot. We identify the relevant factors as 1) gender-identifying characters or radicals; 2) sound symbolism and 3) reduplication. We consider the relations between these fa
Background.The role of schools in providing community-based support for children's mental health and well-being is widely accepted and encouraged. Research has mainly focused on designing and evaluating specific interventions and there is little data available regarding what provision is available, the focus and priorities of schools and the professionals involved in providing this support. The cu
Schools are considered an ideal setting for community-based mental health and well-being interventions for young people. However, in spite of extensive literature examining the effectiveness of such interventions, very few studies have investigated existing mental health and well-being provision in schools. The current study aims to extend such previous research by surveying primary and secondary
